Therefore, if vacua compatible with our data can be accessed via downward transitions, we most likely exist at early times in the unfolding of the multiverse, well-before the mixing time for the landscape.
This confirms the assumptions underlying the early-time approach to eternal inflation [1]}, [2]}, [3]}, [4]}. This also circumvents the issue of Boltzmann brains [5]}, [6]}, [7]}, [8]}, [9]}, which are produced on exponentially longer time scales. On the other hand, the time of existence for the late time hypothesis is much longer than mixing time and recurrence time of certain vacua. The rate of production of freak observers put stringent constraint on the landscape.
